The collapse of the Hittite Empire in the Late Bronze Age has been blamed on various factors, from war with other territories to internal strife. Now, a Cornell University team has used tree ring and isotope records to pinpoint ...
Archaeology
Feb 8, 2023
0
46
(Phys.org)—Say "La Brea Tar pits," and most people imagine the saber-tooth cats and woolly mammoths that were trapped on sticky asphalt (now in modern-day Los Angeles), only to have their bones preserved for the ages. But ...
Environment
Feb 21, 2013
0
1
Genetic detective work by an international group of researchers may have solved a decades-long mystery of the source of a devastating tree-killing fungus that has hit six of the world's seven continents.
Biotechnology
Sep 1, 2011
2
0
As the U.S. Southwest grew warmer from 18,700 to 10,000 years ago, juniper trees vanished from what is now the Mojave Desert, robbing packrats of their favorite food. Now, University of Utah biologists have narrowed the hunt ...
Ecology
Apr 6, 2009
2
0
Is it too early to talk about Christmas? Some might consider midway through May to be slightly premature, to put it mildly. But when it comes to saving critically endangered trees, there's no time like the present. Having ...
Ecology
May 28, 2019
0
5
Many southwestern forests in the United States will disappear or be heavily altered by 2050, according to a series of joint Los Alamos National Laboratory-University of New Mexico studies.
Environment
Jul 11, 2013
2
0
In Oregon, western juniper trees are expanding their range, pushing out other plant species, reducing sagebrush habitat and livestock forage, and at times fueling catastrophic wildfires. During some of these conflagrations, ...
Ecology
Jul 9, 2013
0
0
A new strategy to manage invasive species and achieve broader conservation goals is being tested in the Grand River Grasslands, an area within the North American tallgrass prairie ecoregion. A University of Illinois researcher ...
Ecology
Jul 10, 2012
0
0
New research concludes that a one-two punch of drought and mountain pine beetle attacks are the primary forces that have killed more than 2.5 million acres of pinyon pine and juniper trees in the American Southwest during ...
Ecology
Jun 27, 2012
0
0
